*{
    margin: 0;
    padding:0;
    list-style: none;
    box-sizing: border-box;
}
.wrap{
    width:800px;
    margin: auto;
}
.header{
    margin-top: 20px;
}
table{
    width:100%;
    border-collapse: collapse;
    margin-top: 30px;;
    text-align: center;
}
table tr{
    height:40px;
}
